How to provide default value for implicit parameters at class level

Question

I\'m trying to define a class with some methods taking an implicit parameter :

object Greetings {
  def say(name: String)(implicit greetings: String): String = g         


        

Answer 1

I've found a workaround:

class Greetings(implicit val greetings: String = "hello") {
    def say(name: String): String = greetings + " " + name 
}

Like this I can have a default value and override it if I want:

new Greetings().say("loic")                     //> res0: String = hello loic

implicit val greetings = "hi"                   //> greetings  : java.lang.String = hi
new Greetings().say("loic")                     //> res1: String = hi loic

new Greetings()("coucou").say("loic")           //> res2: String = coucou loic

Note: new Greetings()("coucou") is working, not new Greetings("coucou") , because of a syntax strangeness explained here.